Colorado linebacker diagnosed with leukemia shortly after signing with the Buffaloes 1994 recruiting class; received first of two bone marrow transplants one month after Colorado's 1994 defeat of Michigan; able to practice in full pads in spring of 1996 but signs of the disease returned; Bussey was 6-foot-2, 240 pounds when he signed to play in Colorado, but was as low as 145 pounds the summer before his death, of leukemia